This patch adds a double-linked tree class for use in storing the
library. This class can walk backwards from a leaf node when
walk_backwards is called.
I can now backup the library to an xml file. This will be useful for
library updates in the future. The plan is to eventually backport this
feature to Ocarina 4.1 (To make the 4.1 -> 4.2 transition easier)
Libsaria events now support starting specific callback functions in a
background thread. This replaces starting a specific event in the
background.
I have a library tab that is added to the main window through use of the
ocarina.add_tab function.
I have new tests for walking the tree and running multiple threads with
locks.
I've begun work on a generic collection class for the library, playlist,
and queue. Tagpy functions have been merged into the
libsaria.collections.__init__.py file to make things easier.
I have reworked the gstreamer functions from Ocarina 4.0 and combined
everything into one file. I have also created an audio test that plays
a song from my library.
I combined various parts of the Ocarina 4.0 event system into one file.
The new event file has threading abilities built in, so I no longer need
an external file for that
I revised the Ocarina 4.0 map class so it will hopefully have better
performance. I also began working on a new testing system so testing
specific changes should be easier than with Ocarina 4.0